Quantum Period Attack and Quantum Truncation Attack on OTR Scheme.

The OTR scheme is a well-known AE system cipher proposed at the EUROCRYPT 2014. Due to its characteristics of fast and compact operation, OTR has wide applications. At CRYPTO 2016, Kaplan et al. proposed a method of constructing Simon function based on rotation value to implement quantum periodic attacks on cryptographic schemes such as CBC-MAC, PMAC, GMAC, GCM and OCB. This paper modifies the assumptions of random numbers in this method, proposes a Simon construction method based on different functions, and constructs a Simon periodic function on the OTR scheme. In addition, a forgery attack on the association information of the OTR scheme is proposed based on the quantum truncation technique. [ABSTRACT FROM AUTHOR]